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Display functions – Matrix Orbital LK402-25 User Manual

Page 32

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7. Display Functions

7.1. Display On

Dec
Hex
ASCII

254 66

FE 42

■ B

Minutes
Minutes
Minutes

Turns the display backlight on for a specified length of time. If an inverse display color is used this command will
essentially turn on the text.

Minutes

1 byte, number of minutes to leave backlight on, a value of 0 leaves the display on indefinitely


7.2. Display Off

Dec
Hex
ASCII

254 70

FE 46

■ F

Turns the display backlight off. If an inverse display colour is used this command will turn off the text.


7.3. Set Brightness

Dec
Hex

254 153

FE 99

Brightness
Brightness

Immediately sets the backlight brightness. If an inverse display color is used this represents the text colour
intensity instead. Default is 255.

Brightness

1 byte, brightness level from 0(Dim) to 255(Bright)


7.4. Set and Save

Brightness

Dec
Hex

254 152

FE 98

Brightness
Brightness

Immediately sets and saves the backlight brightness. Although brightness can be changed using the set command,
it is reset to this saved value on start up. Default is 255.

Brightness

1 byte, brightness level from 0(Dim) to 255(Bright)


7.5. Set Contrast

Dec
Hex
ASCII

254 80

FE 50

■ P

Contrast
Contrast
Contrast

Immediately sets the contrast between background and text. If an inverse display color is used this also represents
the text brightness. Default is 128.

Contrast

1 byte, contrast level from 0(Light) to 255(Dark)


7.6. Set and Save

Contrast

Dec
Hex

254 145

FE 91

Contrast
Contrast

Immediately sets and saves the contrast between background and text. Although contrast can be changed using
the set command, it is reset to this saved value on start up. Default is 128.

Contrast

1 byte, contrast level from 0(Light) to 255(Dark)